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Eric Blake fbaa6bb3d3 qcow2: Optimize write zero of unaligned tail cluster 
We've already improved discards to operate efficiently on the tail
of an unaligned qcow2 image; it's time to make a similar improvement
to write zeroes.  The special case is only valid at the tail
cluster of a file, where we must recognize that any sectors beyond
the image end would implicitly read as zero, and therefore should
not penalize our logic for widening a partial cluster into writing
the whole cluster as zero.

However, note that for now, the special case of end-of-file is only
recognized if there is no backing file, or if the backing file has
the same length; that's because when the backing file is shorter
than the active layer, we don't have code in place to recognize
that reads of a sector unallocated at the top and beyond the backing
end-of-file are implicitly zero.  It's not much of a real loss,
because most people don't use images that aren't cluster-aligned,
or where the active layer is a different size than the backing
layer (especially where the difference falls within a single cluster).

Update test 154 to cover the new scenarios, using two images of
intentionally differing length.

While at it, fix the test to gracefully skip when run as
./check -qcow2 -o compat=0.10 154
since the older format lacks zero clusters already required earlier
in the test.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170507000552.20847-11-eblake@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-05-11 14:28:07 +02:00
..
sample_images
block/vpc: tests for auto-detecting VPC and Hyper-V VHD images
2016-03-14 16:46:42 +01:00
.gitignore
iotests: record separate timings per format,protocol pair
2017-02-12 00:47:42 +01:00
001
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
001.out
…
002
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
002.out
…
003
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
003.out
…
004
block: enable testing of LUKS driver with block I/O tests
2016-05-12 15:33:24 +02:00
004.out
…
005
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
005.out
…
007
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
007.out
…
008
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
008.out
…
009
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
009.out
…
010
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
010.out
…
011
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
011.out
…
012
block: enable testing of LUKS driver with block I/O tests
2016-05-12 15:33:24 +02:00
012.out
…
013
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
013.out
…
014
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
014.out
…
015
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
015.out
…
017
qemu-iotests: exclude vxhs from image creation via protocol
2017-04-24 15:09:33 -04:00
017.out
opts: produce valid command line in qemu_opts_print
2015-09-11 10:21:38 +03:00
018
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
018.out
iotests: 018: Use TEST_IMG override instead of "mv"
2016-01-07 21:30:17 +01:00
019
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
019.out
qemu-io: Switch 'alloc' command to byte-based length
2017-05-11 14:28:05 +02:00
020
qemu-iotests: exclude vxhs from image creation via protocol
2017-04-24 15:09:33 -04:00
020.out
iotests: 020: Use TEST_IMG override instead of "mv"
2016-01-07 21:30:17 +01:00
021
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
021.out
…
022
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
022.out
…
023
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
023.out
qemu-io: Allow unaligned access by default
2016-05-12 15:33:24 +02:00
024
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
024.out
iotests: 024: Use TEST_IMG override instead of "mv"
2016-01-07 21:30:17 +01:00
025
block: Drop unmaintained 'archipelago' driver
2017-03-13 12:49:33 +01:00
025.out
…
026
iotests: Fix typo in 026
2017-04-27 15:46:16 +02:00
026.out
iotests: Fix typo in 026
2017-04-27 15:46:16 +02:00
026.out.nocache
iotests: Fix typo in 026
2017-04-27 15:46:16 +02:00
027
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
027.out
…
028
qemu-iotests: _cleanup_qemu must be called on exit
2017-04-24 15:09:33 -04:00
028.out
qemu-iotests: Filter HMP readline escape characters
2017-04-27 15:39:49 +02:00
029
qemu-iotests: exclude vxhs from image creation via protocol
2017-04-24 15:09:33 -04:00
029.out
…
030
iotests: 030: Prepare for image locking
2017-05-11 11:08:40 +02:00
030.out
qemu-iotests: Test the 'base-node' parameter of 'block-stream'
2016-10-31 16:52:39 +01:00
031
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
031.out
qcow2: Write full header on image creation
2016-01-20 13:36:23 +01:00
032
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
032.out
…
033
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
033.out
block: Fix blk_aio_write_zeroes()
2016-04-15 17:22:11 +02:00
034
block: Switch bdrv_write_zeroes() to byte interface
2016-06-08 10:21:08 +02:00
034.out
iotests: 034: Use TEST_IMG override instead of "mv"
2016-01-07 21:30:17 +01:00
035
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
035.out
…
036
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
036.out
qapi: Drop QERR_UNKNOWN_BLOCK_FORMAT_FEATURE
2016-03-17 15:47:56 +01:00
037
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
037.out
iotests: 037: Use TEST_IMG override instead of "mv"
2016-01-07 21:30:17 +01:00
038
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
038.out
iotests: 038: Use TEST_IMG override instead of "mv"
2016-01-07 21:30:17 +01:00
039
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
039.out
block: add support for --image-opts in block I/O tests
2016-05-12 15:33:24 +02:00
040
qemu-iotests: Test the reopening of overlay_bs in 'block-commit'
2015-11-11 16:25:47 +01:00
040.out
qemu-iotests: Test the reopening of overlay_bs in 'block-commit'
2015-11-11 16:25:47 +01:00
041
iotests: Add mirror tests for orphaned source
2017-04-07 14:44:06 +02:00
041.out
iotests: Add mirror tests for orphaned source
2017-04-07 14:44:06 +02:00
042
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
042.out
…
043
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
043.out
block/qapi: always report full_backing_filename
2015-12-18 14:36:17 +01:00
044
…
044.out
…
045
…
045.out
…
046
iotests: 046: Prepare for image locking
2017-05-11 11:08:40 +02:00
046.out
opts: produce valid command line in qemu_opts_print
2015-09-11 10:21:38 +03:00
047
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
047.out
…
048
block: enable testing of LUKS driver with block I/O tests
2016-05-12 15:33:24 +02:00
048.out
block: enable testing of LUKS driver with block I/O tests
2016-05-12 15:33:24 +02:00
049
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
049.out
option: Tweak invalid size error message and unbreak iotest 049
2017-02-28 20:40:31 +01:00
050
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
050.out
iotests: 050: Use TEST_IMG override instead of "mv"
2016-01-07 21:30:17 +01:00
051
iotests/051: Add test for empty filename
2017-04-27 15:39:49 +02:00
051.out
iotests/051: Add test for empty filename
2017-04-27 15:39:49 +02:00
051.pc.out
iotests/051: Add test for empty filename
2017-04-27 15:39:49 +02:00
052
block: enable testing of LUKS driver with block I/O tests
2016-05-12 15:33:24 +02:00
052.out
block: enable testing of LUKS driver with block I/O tests
2016-05-12 15:33:24 +02:00
053
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
053.out
…
054
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
054.out
…
055
iotests: 055: Don't attach the target image already for drive-backup
2017-05-11 11:08:40 +02:00
055.out
qemu-iotests: test backup compression in 055
2016-09-05 19:06:48 +02:00
056
iotests: Add regresion test case for write notifier assertion failure
2015-12-03 11:08:07 +08:00
056.out
iotests: Add regresion test case for write notifier assertion failure
2015-12-03 11:08:07 +08:00
057
block: Accept node-name for blockdev-snapshot-internal-sync
2016-09-05 19:06:47 +02:00
057.out
…
058
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
058.out
…
059
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
059.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
060
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
060.out
qcow2: Make distinction between zero cluster types obvious
2017-05-11 14:28:07 +02:00
061
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
061.out
block: add support for --image-opts in block I/O tests
2016-05-12 15:33:24 +02:00
062
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
062.out
…
063
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
063.out
…
064
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
064.out
…
065
…
065.out
…
066
iotests: Extend test 066
2017-05-11 12:08:24 +02:00
066.out
iotests: Extend test 066
2017-05-11 12:08:24 +02:00
067
block: Remove "options" indirection from blockdev-add
2016-10-24 17:54:03 +02:00
067.out
qemu-iotests/067: Avoid blockdev-add with id
2016-09-23 13:45:36 +02:00
068
qemu-iotests: Filter HMP readline escape characters
2017-04-27 15:39:49 +02:00
068.out
qemu-iotests: Filter HMP readline escape characters
2017-04-27 15:39:49 +02:00
069
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
069.out
qemu-io qemu-nbd: Use error_report() etc. instead of fprintf()
2016-01-13 15:16:18 +01:00
070
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
070.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
071
block: Remove "options" indirection from blockdev-add
2016-10-24 17:54:03 +02:00
071.out
blkverify: Implement bdrv_co_preadv/pwritev/flush
2017-01-09 13:30:52 +01:00
072
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
072.out
…
073
qemu-iotests: exclude vxhs from image creation via protocol
2017-04-24 15:09:33 -04:00
073.out
opts: produce valid command line in qemu_opts_print
2015-09-11 10:21:38 +03:00
074
…
074.out
…
075
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
075.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
076
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
076.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
077
block/io: optimize bdrv_co_pwritev for small requests
2016-06-07 14:40:51 +01:00
077.out
block/io: optimize bdrv_co_pwritev for small requests
2016-06-07 14:40:51 +01:00
078
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
078.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
079
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
079.out
opts: produce valid command line in qemu_opts_print
2015-09-11 10:21:38 +03:00
080
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
080.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
081
block: Remove "options" indirection from blockdev-add
2016-10-24 17:54:03 +02:00
081.out
iotests: Correct 081's reference output
2016-03-14 17:35:06 +01:00
082
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
082.out
opts: produce valid command line in qemu_opts_print
2015-09-11 10:21:38 +03:00
083
iotests: fix the redirection order in 083
2016-05-12 15:33:23 +02:00
083.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
084
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
084.out
…
085
iotests: 085: Avoid image locking conflict
2017-05-11 11:08:40 +02:00
085.out
iotests: 085: Avoid image locking conflict
2017-05-11 11:08:40 +02:00
086
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
086.out
…
087
iotests: 087: Don't attach test image twice
2017-05-11 11:08:40 +02:00
087.out
qapi: return a 'missing parameter' error
2016-10-07 19:22:11 +02:00
088
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
088.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
089
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
089.out
block: ignore flush requests when storage is clean
2016-07-18 18:19:01 -04:00
090
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
090.out
…
091
iotests: 091: Quit QEMU before checking image
2017-05-11 11:08:40 +02:00
091.out
…
092
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
092.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
093
qemu-iotests: Test I/O in a single drive from a throttling group
2016-10-24 17:54:03 +02:00
093.out
qemu-iotests: Test I/O in a single drive from a throttling group
2016-10-24 17:54:03 +02:00
094
qemu-iotests: _cleanup_qemu must be called on exit
2017-04-24 15:09:33 -04:00
094.out
…
095
iotests: 095: Clean up QEMU before showing image info
2016-06-16 15:20:37 +02:00
095.out
iotests: 095: Filter _img_info output
2016-01-07 21:30:17 +01:00
096
block: Don't return throttling info in query-named-block-nodes
2016-05-19 16:45:31 +02:00
096.out
throttle: test that snapshots move the throttling configuration
2015-10-16 15:34:29 +02:00
097
iotests: Improve image-clear tests on non-aligned image
2017-04-03 17:11:40 +02:00
097.out
iotests: Improve image-clear tests on non-aligned image
2017-04-03 17:11:40 +02:00
098
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
098.out
opts: produce valid command line in qemu_opts_print
2015-09-11 10:21:38 +03:00
099
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
099.out
…
101
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
101.out
…
102
qemu-iotests: _cleanup_qemu must be called on exit
2017-04-24 15:09:33 -04:00
102.out
qemu-io: Switch 'map' output to byte-based reporting
2017-05-11 14:28:06 +02:00
103
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
103.out
qemu-io qemu-nbd: Use error_report() etc. instead of fprintf()
2016-01-13 15:16:18 +01:00
104
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
104.out
…
105
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
105.out
…
107
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
107.out
…
108
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
108.out
…
109
iotests: 109: Filter out "len" of failed jobs
2017-04-27 16:01:11 +02:00
109.out
iotests: 109: Filter out "len" of failed jobs
2017-04-27 16:01:11 +02:00
110
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
110.out
block/qapi: allow best-effort query
2015-12-18 14:36:17 +01:00
111
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
111.out
…
112
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
112.out
iotests: Extend test 112 for qemu-img amend
2015-12-18 14:34:43 +01:00
113
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
113.out
…
114
qemu-iotests: exclude vxhs from image creation via protocol
2017-04-24 15:09:33 -04:00
114.out
qemu-io qemu-nbd: Use error_report() etc. instead of fprintf()
2016-01-13 15:16:18 +01:00
115
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
115.out
opts: produce valid command line in qemu_opts_print
2015-09-11 10:21:38 +03:00
116
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
116.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
117
qemu-iotests: _cleanup_qemu must be called on exit
2017-04-24 15:09:33 -04:00
117.out
iotests: Add test for multiple BB on BDS tree
2016-02-02 17:50:46 +01:00
118
block: Remove "options" indirection from blockdev-add
2016-10-24 17:54:03 +02:00
118.out
iotests: Add test for change-related QMP commands
2015-11-11 16:25:47 +01:00
119
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
119.out
iotests: Add tests for overriding BDRV_O_PROTOCOL
2015-06-12 15:54:08 +02:00
120
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
120.out
iotests: Add tests for overriding BDRV_O_PROTOCOL
2015-06-12 15:54:08 +02:00
121
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
121.out
opts: produce valid command line in qemu_opts_print
2015-09-11 10:21:38 +03:00
122
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
122.out
iotests: Improve _filter_qemu_img_map
2017-05-11 14:28:07 +02:00
123
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
123.out
…
124
iotests: add transactional failure race test
2016-11-14 22:47:34 -05:00
124.out
iotests: add transactional failure race test
2016-11-14 22:47:34 -05:00
128
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
128.out
…
129
…
129.out
…
130
qemu-iotests: _cleanup_qemu must be called on exit
2017-04-24 15:09:33 -04:00
130.out
qemu-iotests: Filter HMP readline escape characters
2017-04-27 15:39:49 +02:00
131
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
131.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
132
qemu-iotests: Add test case for mirror with unmap
2015-07-02 10:06:23 +01:00
132.out
qemu-iotests: Add test case for mirror with unmap
2015-07-02 10:06:23 +01:00
133
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
133.out
qemu-iotests: Test reopen with node-name/driver options
2015-12-18 14:34:43 +01:00
134
qemu-iotests: exclude vxhs from image creation via protocol
2017-04-24 15:09:33 -04:00
134.out
block: move encryption deprecation warning into qcow code
2016-03-30 12:12:15 +02:00
135
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
135.out
block: qemu-iotests - add check for multiplication overflow in vpc
2015-07-27 17:19:07 +02:00
136
qemu-iotests: Fix regression in 136 on aio_read invalid
2016-05-19 16:56:58 +02:00
136.out
block: Remove bdrv_aio_multiwrite()
2016-05-19 16:45:31 +02:00
137
qemu-iotests: Test 137 only supports 'file' protocol
2017-02-24 16:09:22 +01:00
137.out
block: add support for --image-opts in block I/O tests
2016-05-12 15:33:24 +02:00
138
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
138.out
iotests: Add test for checking large image files
2015-09-14 16:51:37 +02:00
139
block: Declare blockdev-add and blockdev-del supported
2017-03-28 15:23:23 +02:00
139.out
qemu-iotests/139: Avoid blockdev-add with id
2016-09-23 13:45:36 +02:00
140
qemu-iotests: _cleanup_qemu must be called on exit
2017-04-24 15:09:33 -04:00
140.out
qemu-io: Return non-zero exit code on failure
2017-02-12 00:47:42 +01:00
141
qemu-iotests: _cleanup_qemu must be called on exit
2017-04-24 15:09:33 -04:00
141.out
mirror: Use real permissions in mirror/active commit block job
2017-02-28 20:47:46 +01:00
142
qemu-iotests: Filter HMP readline escape characters
2017-04-27 15:39:49 +02:00
142.out
qemu-iotests: Filter HMP readline escape characters
2017-04-27 15:39:49 +02:00
143
qemu-iotests: _cleanup_qemu must be called on exit
2017-04-24 15:09:33 -04:00
143.out
nbd: always query export list in fixed new style protocol
2016-02-16 17:16:11 +01:00
144
block: qemu-iotests - add test for snapshot, commit, snapshot bug
2016-02-02 18:07:27 +01:00
144.out
block: ignore flush requests when storage is clean
2016-07-18 18:19:01 -04:00
145
qemu-iotests: Filter HMP readline escape characters
2017-04-27 15:39:49 +02:00
145.out
qemu-iotests: Filter HMP readline escape characters
2017-04-27 15:39:49 +02:00
146
block/vpc: add tests for image creation force_size parameter
2016-03-14 16:46:42 +01:00
146.out
qemu-io: Switch 'map' output to byte-based reporting
2017-05-11 14:28:06 +02:00
147
nbd: Tidy up blockdev-add interface
2017-04-03 17:11:39 +02:00
147.out
iotests: Add test for NBD's blockdev-add interface
2016-10-27 19:05:23 +02:00
148
qemu-iotests: 148: properly skip test if quorum support is missing
2016-04-12 18:07:39 +02:00
148.out
iotests: Test QUORUM_REPORT_BAD in fifo mode
2016-03-17 16:43:30 +01:00
149
crypto: fix handling of iv generator hash defaults
2016-07-04 10:46:59 +01:00
149.out
crypto: fix handling of iv generator hash defaults
2016-07-04 10:46:59 +01:00
150
qemu-iotests: tests: do not set unused tmp variable
2016-04-15 17:56:56 +02:00
150.out
iotests: Make 150 use qemu-img map instead of du
2016-04-12 18:06:51 +02:00
152
iotests: Test case for drive-mirror with unaligned image size
2016-04-20 16:52:55 +02:00
152.out
iotests: Test case for drive-mirror with unaligned image size
2016-04-20 16:52:55 +02:00
153
qemu-iotests: Add test case 153 for image locking
2017-05-11 11:15:32 +02:00
153.out
qemu-iotests: Add test case 153 for image locking
2017-05-11 11:15:32 +02:00
154
qcow2: Optimize write zero of unaligned tail cluster
2017-05-11 14:28:07 +02:00
154.out
qcow2: Optimize write zero of unaligned tail cluster
2017-05-11 14:28:07 +02:00
155
block: Remove "options" indirection from blockdev-add
2016-10-24 17:54:03 +02:00
155.out
iotests: Add test for post-mirror backing chains
2016-06-16 15:20:37 +02:00
156
qemu-iotests: _cleanup_qemu must be called on exit
2017-04-24 15:09:33 -04:00
156.out
iotests: Add test for oVirt-like storage migration
2016-06-16 15:20:37 +02:00
157
iotests: Make 157 actually format-agnostic
2016-07-13 13:41:39 +02:00
157.out
iotests: Make 157 actually format-agnostic
2016-07-13 13:41:39 +02:00
158
qemu-iotests: exclude vxhs from image creation via protocol
2017-04-24 15:09:33 -04:00
158.out
qcow2: fix encryption during cow of sectors
2016-09-23 13:36:09 +02:00
159
qemu-img: add the 'dd' subcommand
2016-09-20 22:10:57 +02:00
159.out
qemu-img: add the 'dd' subcommand
2016-09-20 22:10:57 +02:00
160
qemu-img: add skip option to dd
2016-09-20 22:10:57 +02:00
160.out
qemu-img: add skip option to dd
2016-09-20 22:10:57 +02:00
162
iotests: Skip test 162 if there is no SSH support
2016-11-11 15:56:22 +01:00
162.out
iotests: Do not rely on unavailable domains in 162
2016-10-24 17:54:03 +02:00
170
qemu-img: add the 'dd' subcommand
2016-09-20 22:10:57 +02:00
170.out
qemu-img: add the 'dd' subcommand
2016-09-20 22:10:57 +02:00
171
qemu-iotests: test 'offset' and 'size' options in raw driver
2016-10-31 16:52:39 +01:00
171.out
qemu-iotests: test 'offset' and 'size' options in raw driver
2016-10-31 16:52:39 +01:00
172
iotests: 172: Use separate images for multiple devices
2017-05-11 11:08:40 +02:00
172.out
iotests: 172: Use separate images for multiple devices
2017-05-11 11:08:40 +02:00
173
qemu-iotest: test to lookup protocol-based image with relative backing
2017-02-12 00:47:42 +01:00
173.out
qemu-iotest: test to lookup protocol-based image with relative backing
2017-02-12 00:47:42 +01:00
174
qemu-io: Add failure regression tests
2017-02-12 00:47:42 +01:00
174.out
qemu-io: Add failure regression tests
2017-02-12 00:47:42 +01:00
175
qemu-img: Add tests for raw image preallocation
2017-02-24 16:09:22 +01:00
175.out
qemu-img: Add tests for raw image preallocation
2017-02-24 16:09:22 +01:00
176
iotests: Improve image-clear tests on non-aligned image
2017-04-03 17:11:40 +02:00
176.out
iotests: Improve image-clear tests on non-aligned image
2017-04-03 17:11:40 +02:00
177
tests: Add coverage for recent block geometry fixes
2017-05-11 14:28:06 +02:00
177.out
tests: Add coverage for recent block geometry fixes
2017-05-11 14:28:06 +02:00
179
iotests: Add test 179 to cover write zeroes with unmap
2017-05-11 14:28:07 +02:00
179.out
iotests: Add test 179 to cover write zeroes with unmap
2017-05-11 14:28:07 +02:00
181
qemu-iotests: Test postcopy migration
2017-04-27 15:39:49 +02:00
181.out
qemu-iotests: Test postcopy migration
2017-04-27 15:39:49 +02:00
182
tests: Add POSIX image locking test case 182
2017-05-11 12:08:20 +02:00
182.out
tests: Add POSIX image locking test case 182
2017-05-11 12:08:20 +02:00
check
iotests: record separate timings per format,protocol pair
2017-02-12 00:47:42 +01:00
common
iotests: fix exclusion option
2017-04-28 18:40:41 +02:00
common.config
qemu_iotests: Remove _readlink()
2017-04-27 15:39:50 +02:00
common.filter
iotests: Improve _filter_qemu_img_map
2017-05-11 14:28:07 +02:00
common.pattern
qemu-io: Switch 'alloc' command to byte-based length
2017-05-11 14:28:05 +02:00
common.qemu
qemu-iotests: Filter HMP readline escape characters
2017-04-27 15:39:49 +02:00
common.rc
iotests: Launch qemu-nbd with -e 42
2017-04-27 15:39:50 +02:00
COPYING
…
group
iotests: Add test 179 to cover write zeroes with unmap
2017-05-11 14:28:07 +02:00
iotests.py
iotests: Add mirror tests for orphaned source
2017-04-07 14:44:06 +02:00
Makefile
iotests: record separate timings per format,protocol pair
2017-02-12 00:47:42 +01:00
nbd-fault-injector.py
…
qcow2.py
…
qed.py
tests: Use Python 2.6 "except E as ..." syntax
2016-02-08 17:29:54 +01:00
README
doc: Fix mailing list address in tests/qemu-iotests/README
2016-06-16 15:19:55 +02:00
socket_scm_helper.c
socket_scm_helper: Accept fd directly
2016-10-27 19:05:23 +02:00

README 

=== This is the QEMU I/O test suite ===

* Intro

This package contains a simple test suite for the I/O layer of qemu.
It does not require a guest, but only the qemu, qemu-img and qemu-io
binaries.  This does limit it to exercise the low-level I/O path only
but no actual block drivers like ide, scsi or virtio.

* Usage

Just run ./check to run all tests for the raw image format, or ./check
-qcow2 to test the qcow2 image format.  The output of ./check -h explains
additional options to test further image formats or I/O methods.

* Feedback and patches

Please send improvements to the test suite, general feedback or just
reports of failing tests cases to qemu-devel@nongnu.org with a CC:
to qemu-block@nongnu.org.